Nitrogen removal and simultaneous nitrification and denitrification in a fluidized bed step-feed process

被引：29

作者：

Wang, Bing ^{[1
,2
]}

Wang, Wei ^{[3
]}

Han, Hongjun ^{[1
]}

Hu, Hongbo ^{[1
]}

Zhuang, Haifeng ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Urban Water Resources & Environm SK, Harbin 150090, Peoples R China

[2] Shenyang Jianzhu Univ, Municipal & Environm Engn Coll, Shenyang 110168, Peoples R China

[3] Hefei Univ Technol, Sch Civil & Hydraul Engn, Hefei 230009, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2012年 / 24卷 / 02期

关键词：

denitrification; fluidized bed; step-feed; simultaneous nitrification and denitrification; MASS-TRANSFER; PERFORMANCE; REACTOR; WATER;

D O I：

10.1016/S1001-0742(11)60767-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For urban wastewater treatment, we conducted a novel four-stage step-feed wastewater treatment system combined with a fluidized bed laboratory experiment to investigate chemical oxygen demand (COD), NH4+-N, and total nitrogen (TN) removal performance. The removal rates of COD, NH4+-N and TN were 88.2%, 95.7%, and 86.4% with effluent concentrations of COD, NH4+-N and TN less than 50, 8, and 10 mg/L, respectively. Biomass and bacterial activities were also measured, with results showing more nitrobacteria in the activated sludge than in the biofilm; however, bacterial activity of the biofilm biomass and the activated sludge were similar. Nitrogen concentrations during the process were also detected, with simultaneous nitrification and denitrification found to be obvious.

引用

页码：303 / 308

页数：6

共 50 条

[1] Nitrogen removal and simultaneous nitrification and denitrification in a fluidized bed step-feed process
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[J]. Journal of Environmental Sciences, 2012, (02) : 303 - 308
[2] Nitrogen removal and simultaneous nitrification and denitrification in a fluidized bed step-feed process
Bing WangWei WangHongjun HanHongbo HuHaifeng Zhuang State Key Laboratory of Urban Water Resources and EnvironmentSKLUWREHarbin Institute of TechnologyHarbin ChinaMunicipal Environmental Engineering CollegeShenyang Jianzhu UniversityShenyang China School of Civil and Hydraulic EngineeringHefei University of TechnologyHefei China
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